Piano wrest-plank.



J. KANTOR.

PIANO WRES T FLANK. APPLICATION FILED IULY I4; 1914- 1 ,21 2,775, Patented Jan. 16, 1917.

I To all whom, it may oonoerni I JACOB mutto on ron'r nLIzABErH, CAPE C010NY',1S(5UTH 'ai n'roagfl rmno 'WBEST-PLANK; H

Be it known that L'JACOB KANTOB, a citizen of Cape Colony, 57, Port Elizabeth, Cape Colony, 'SouthAf rica, have invented certain new and useful Improvements in Piano .Wrest-Planks, of

c which the following is a specification. I

My invention relates to improvements in a wrest planks for pianos and other musical instruments. V The object of the vide a wrest plank :in which the pegs are not liable to become loose by the board becoming dry, as is the case for example in tropi-c cal and sists of superposed layers of wood;

My invention consi" board of layers ofwoodand fabric disposed between the layers of wood and gluedth'ere to, the fabric being of'such an'ature as not to be subject to the influence of dry and wet weather. I I have foundthat layersof rough linen bagging are jbest'suited for the "purpose, the poresof the bagging being filled with the gluing material." The, layers of bagging stick to the layers of wood .insuch a way as to prevent warping of the same. have found that a wrest plank of this construction doesvnot show widening of thepeg most dry climates, so that. the pegs are rig idly held in their holes;

been shown in the accompanying drawing,v

in which thesame lettersof reference have been used in all the views to indicate 'corre-[ sponding parts.

In said drawing diigure l, isa perspective view of a P rt of a :wrest plank with a short several pegs ortuning pins in place, section of the plank being shown, and Fig.

2, is a partial section of the same taken a I through one of the tuning pins; 7

c I In the examplefhown 1n the drawing the wrest plank consists of four superposed lay ers a, b, 0, 0K ofwood, the top and bottom layers a and (Z being thinner than the me dium layers band 0. The layers a, 0 and d are composed of transverse boards which, are

displaced relatively to oneanother, while "the layer 1) consists of at single continuous longitudinal board. 'Between allthelayers residing at Main street improvementsis to pro.-

dryclimates even if the "boardconast's in composing the grain plank, between said layers of wood, and the whole 'beingheld together by gluing material, of I Patented Jan. 16, 1917.

Application filed July 14,1914. Serial No. 851,021,

are glued andfixed thereto while compressing the whole board.

1 The h les for under any conditions of the climate.

'I claim herein as my invention: I

1. Awrest plank for musical struments,

, f W Od there are layers, 0 of'bagging which a i i thepegysfl f'db not change 7 consisting of alternatelayersflof wood and V V woven fabric combined by gluing; c

2. 'A wrest plankfor musical 'nstruments consisting of alternate plane layers of wood and linenbagging combinedby gluing,

comprising in' combinationxfour superposed layers of --wood, the top and bottom layers be ng thinner, than the intermediate layers,

7O said 'layersofwood and the whole combined layers-of linen-bagging disposed between by'a gluingmaterial. r 4. The 'comb'nation with a wrest plank 3; A wrest'plank formu'sical instruments I consisting of four" superposed layers of wood, the top and bottom layers, being thinner thanthe intermediate layers, layers of linen bagging disposed between said lay-, a 'ersgof wood and the whole combinedbya gluingmaterial, of a seriesfof; pegs inserted into said plank forthe attachmentofstrings thereto... a p I '5'. Awrest plank for-musical instruments holes even 'after'several years of-use 'in the comprising in combination, foursuperposed.

- layers -of'wo1od,-the top and bottom layers being thinner than the intermediate layers, one of'the-intermediate layers of .wood having the grain runninglongitudi'nally of the fabric disposed between said layers of wood,

and the whole being held together-by gluing I,

material;

7 6. The combination with a wrest plank: consistingxof four superposed layers of wood, vthe top and bottom layers being" thinner than the intermediate layers, one of the intermediate layers of wood having its grainrunning longitudinally of they wrest plank and the" remaining layers having-their running transversely of; the wrest layers of, textile bagging interposed" a series of pegs inserted into said vplank for Htheattachment of strings thereto. 7 i y I V r r V 1,212,775"

7. The combination o f-,a, w rest plank for In izesfimonyrwhere ef aflix my-signatn 'e V musical instruments consisting of; alternate in presence of two witnesses. V i e p1anelayers of. Wood and linenbaggingz' eom- V n v JACOB KANTOR. bined by gluing, and a series of pegsin- Witnesses: i '{E' 5 serted into said plank for the attachment of MLE. WAKEFIELD,

strings theretb. r WHQFRED NIdHoLspN.

- Copies of this patent may be ebtained for flv e cen'ts eaeh, by eddzessingithe Gomniissionei' of Patents, V Washingtomflfl. V 

